Arch or truss shoe



.20- vention, wherein-'- gtthe-line'2-2' of Fig. l; i longitudinal'section Louis DAvInsoN; on NEWlYonx; v

non onf'rnuss snol-i'` applicatignfnlea December 10, 1926,'v sentirne.' vlas-,$91.

` The present invention relates to an arch orV v truss. shoe especially adapted for use with long span arch constructions, and aims t0 provide certain improvements-therein. More construction which may be cheaply fabricat--A one'which will provide easy and rap1d 10 ed; (2) r assembly of the arch. in the field; (3), one which will provide a maximum amount of clearance between theiloor and roof oav building, thus providingfor a maximum 15 amount of light and air, and (4) one which may be vusedv forv either permanent or temporary construction work with equal facility. lIn the accompanying drawings Ihave.

illustrated several embodiments of my in Figurel is a lpartial elevationl of a ,long .span arch constructioneinbodying ,the arch or truss shoe of-my invention;

-- -Fig.`2 is -a transverseV section Fig. 4 is a transverse section similar to Fig. 2,,show1ng a; modified Sforinjof the inven- 'm30 tion;.; Fig. 5 is a view similar toff Fig. 1, o'fanothei"v u embodiment of my invention;

Figs. '6 and 7 are sections alienta-the v bodiment of my invention;

Figs. .9 and 10l are sectlons shoe as a whole, which may be'. oi anyl preferred or desired transverse 'cross-sectional I zh contoup depending ulgnythe cross-section of ac h'segmentsw 'f1. 5jto support, these segments being preferably l i' 4The 5 shoe-'2,1 when?, viewed in transverse taken". along. -A

' is inthe f orm-'ofan-I-beam. When viewedin' horizontal longitudinal section, as shown in Fig. 8 is an .e1evation of'stll anotheneml p talren along'the- [lines 9`-9'and 10-10 respectively,A ofFig.`-8 I bh the shoe is adapted' steel-rolled-sections of any desired-cross-section;` Numeral 1' indicates apartition w`al1 within the shoe, against which the `end s of ad# `jacentsegments `8 are adapted to bear and transmit' the compression` 'strains' directly 50 '.from on`e s eg1'nen't tothe other. Itis pref- `erable that the-facesv 'ofthe partition wall I1 be inclined with respect tol one another and` form righta'ngles with the side. land top walls of-the "shoeV andzltliereby accommodate seg-v 5 5 ments having squared ends. Theangul'arity between thejincli'ned fac-es of the partition walls, 1 ofthe shoef2j, it will .be apparent, will determine-theangularity or curvature of the section, is of ysubstantiallyIlshape, the web 2a thereof constitutingy the side wallv of the shoe, andthe top' -and' bottom bars 2b and'20, .respectively,= of the I constituting the top and C5 bottomwa'llsof theshoe," portions of said vwalls beingin o verlappingspaced relation to accommodate and lembrace portions of the# top 'andbottoiir bars ofthe'segment 8 which Fig. 3, the shoe'2 is-of substantially cro`ss('+ shape, therhorizontal aligned arms 30 o f one bargof the 'cross corres onding tothe side w'all or'web memberl oft e shoe,a nd the ver. 'tical aligned arms 5.0i the other bar of the `cros's, l 'co1istituting'g*weby members adapted to.

support 'roofsupportiiig.beams (not shown)." v

-Atthe'int'ersection of the bars of the cross the partition wall l'p'rovides an 'offset hub porm tion `vwith shoulders 9 against which the end faces of 'thsegmentsxS bear', for the purpose fhereinbefore set forth. v f v f v '.1 `Referring first-to Figs.1` to- 3 of the draw- 51:49 ings, numeral 2 indicates the arch orftrussffv In'the'modiiied form of shoe shown in Fig.

asshown.'

In Figs. 5 to 7 both' the top and bottom wa1ls 3 and 4 respectively of the vshoe. are 90 bolte riveted, or welded to-the.l segmentszS,

to the segments 8 by'v boltng, riveting or The various modifications of. the invention beused" for either temporaryor permanent long'span arch constructions, itbeing obvious that where the construction-s are to be tempo- 1"ary, the shoesand segments will. be bolted together, Whereas Where the constructions are to be-permanent, the` shoes and segments 'Will be riveted onwelded together. 'In the various figures I have accordingly indicated by` the numeral 6 crosses whereat' the bolts;

rivets or Welding will belocated.-

The arch or truss shoe constructiolnitwill be apparent, may be made as castmgs, ldrop forgings, pressed steelv plates, or built, upof i assembled elements, zin-'embodiment of the pressed steel plates construction being shown in Figs. 8 to 10. -Inp these tiguresthe shoe 22 is shownv asv formedv from four pressed steel plates which in assembled relation, -when -viewedjn end elevation, constitute two units, 'each of which has the form of a hollow I, the top and bottom 4Walls of Whichare provided witha longitudinal `rib whereat thev outturned `edges 23 of the plates of 'the half I'units are` brought into abutting relation, and in which,

when viewed in front elevation, the abutting top and bottom edges of the units are like-.

wise formed with outturned edges 24 providing a rib.l To'hold the various elements of the shoe in assembled relation, substantially i U-shaped cleats 25 are employed, which are forced over theqoutWard/ly turned abutting edges, as best shown in Figs. 8, and 9.-. TheA shoe 22 is 44likewise provided `with trans` versely-extendinglateral-Webs 26 which" are v'pression strains .to be transmitted from -the"V end face of one of the se ments tothe end g segni-ent, and the'allgned arms vof the other adapted to support root-supporting j beams (not shown), these Webs 26 being integrally formed with vtheweb members of theshoe, asbest shown in Fig. 10.' Toenablethe com'- l face of another m this type-ot shoe, a wedgeshaped member 27 is positioned betweenthe adjacent end faces of the 'half shoe units, as best shown in Figs. -.8` and 10, said member 27 preferably extending across the full width of tion of the steel rolled section segments which .it is adapted to cooperate-With., It will be equally obvious that, ifdesired', the cast shoes .jF shownl in Figs. 1 to? may likewise-be formed in halves, orfconsisting of two units ]oined together in any appropriate mannerlwg g .While I have shown and described several embodiments of my invention, it will be apparent-that the constructions disclosed may be varied4 without departing from the spirit of the invention.

shape inV plan section, with an o shoe.

What I claim is port the ends of steel rolledjsection segments,

,comprising means `against which. the. end as thus far described, it will be apparent, may

faces of the-segments are adapted'. to bear to permit of the strains being transmitted v from the end of one segment to the fend-of another, said shoe/having a contour to engage and hug the various elements 'of the end complemental faces of the' segments for ressting bendingstrains of the arch.

' 2.fAn arch'or truss shoe adapted to supy port the ends of steel rolled section segments, comprising means against which the end faces ofthe segments are adapted to bear to permitof the strainsb'eing" transmitted from the `end of one segment to the end of another, said' shoe having a contour to embrace and hug at least two adjacent elements of the endportions of said rolled section segments, at least one of'said elements vbeing secured to theilange of thesegments for resisting bending strains ofthe arch. 0

3. In a long spanA archconstruction, an arch or truss shoeof substantially cross shapein plan section, the aligned armsof one bar ofthe cross' being adapted toconnect the ends of steel rolled section segments to form the arch, and the aligned arms of the other bar of the cross beingadapted to 'support roof-supporting beams. f

4.. In a long span arch construction, an

arch or truss shoe of substantiall cross lipset hub portion at the intersection lof the bars of the cross, the aligned arms'of one bar of the cross being adapted to connect the ends of steel .rolled section segments to formthe arch, the

offset hub portion formingabutments against .which the end. Ifaces of' said segments aire adapted tobear to ermit the compression '-strains being-transmltted from the end face of one segment to the end face'of another barof1 the cross being adaptedto support"- I roof-supporting beams.

" 5. In a long 4 span arch construction, an'

arch o r truss shoe of substantially cross shape in plan section, with an offset portionl 'dinal verticalsection presenting an abutment inclined tothe longitudinal axis-of the .6. In a longv span arch' construction, an arch'or truss shoe' of Asubstantially' shape' in plan section, the aligned, arms of y one bar of the cross being adaptedfto connect v the ends'of steel rolled'section'segments to` form'V the arch',and the-.aligned arms of the other bar of the cross beingadapted to support roof-supporting means, said shoe having means at the top and bottom for resisting bending 'strains of the arch.

7. In a long span arch Aconstruction, an arch or truss shoe of substantially shape in plan section, with an oiset portion at the intersection of the bars of the cross, said offset portion when viewed in longitudinal vertical section presenting an abutment inclined to the longitudinal axls of the shoe, said shoe having'means at the top and bottom for resisting bending strains of the arch.

In Witness whereof, I have-hereunto signed my name.

LOUIS DAVIDSON. 

